CD133+ Tumor Initiating Cells (TIC) in a Syngenic Murine Model of Pancreatic Cancer Respond to Minnelide The authors isolated CD133+ cells from a spontaneous PDAC mouse model and studied both surface expression, molecular markers of pancreatic TIC. They also studied tumor initiation properties by implanting low numbers of CD133+ cells in immune competent mice. [Clin Cancer Res] Abstract Orchestration of Hepatocellular Carcinoma Development by Diverse Liver Cancer Stem Cells Scientists found that liver cancer stem cells defined by different markers show unique features of tumorigenicity and metastasis, with phenotypes closely associated with committed liver lineages. [J Gastroenterol] Abstract Comparative Expression Study of the Endo-G Protein Coupled Receptor (GPCR) Repertoire in Human Glioblastoma Cancer Stem-Like Cells, U87-MG Cells and Non Malignant Cells of Neural Origin Unveils New Potential Therapeutic Targets Researchers report a descriptive study of the differential expression of the endo-GPCR repertoire in human glioblastoma cancer stem-like cells, U-87 MG cells, human astrocytes and fetal neural stem cells. [PLoS One] Full Article Phenotypic, Genomic and Functional Characterization Reveals No Differences between CD138++ and CD138low Subpopulations in Multiple Myeloma Cell Lines The authors demonstrated the presence of two subpopulations – CD138++ (95-99%) and CD138low (1-5%) – in eight multiple myeloma cell lines. To find out possible stem-cell-like features, they phenotypically, genomically and functionally characterized the two subpopulations. [PLoS One] Full Article The Notch Pathway Is Important in Maintaining the Cancer Stem Cell Population in Pancreatic Cancer A gamma secretase inhibitor that inhibits the Notch pathway and a shRNA targeting the Notch target gene Hes1 were used to assess the role of the Notch pathway in cancer stem cell population maintenance and pancreatic tumor growth. [PLoS One] Full Article Tumor-Induced STAT3 Activation in Monocytic Myeloid-Derived Suppressor Cells Enhances Stemness and Mesenchymal Properties in Human Pancreatic Cancer Scientists demonstrated that monocytic myeloid-derived suppressor cells (CD11b+/Gr1+/Ly6G–/Ly6Chi) significantly increase the frequency of ALDH1Bright cancer stem cells in a mouse model of pancreatic cancer. [Cancer Immunol Immunother] Full Article Stemness State Regulators SALL4 and SOX2 Are Involved in Progression and Invasiveness of Esophageal Squamous Cell Carcinoma SALL4 and SOX2 are two main transcription factors involved in maintenance of pluripotency, self-renewal and cell fate decision in embryonic stem cells. Investigators aimed to elucidate the expression levels of these important transcription factors in esophageal squamous cell carcinoma and to reveal their probable roles in maintenance and progression of the disease. [Med Oncol] Abstract A Mesenchymal Glioma Stem Cell Profile Is Related to Clinical Outcome Comparative analysis between glioma stem cells (GSCs) and H1 and H9 human embryonic stem cells as well as H9-derived neural stem cells indicates major variations in gene expression of pluripotency factors Nanog and OCT4, but a stable pattern for SOX2 suggesting its important function in maintaining pluripotency in GSCs. [Oncogenesis] Full Article |